Purge FireFox cookies for a site

Frequently it is convenient, when testing and debugging (or even just when browsing normally), to purge all of the cookies for a particular site. Although it is possible to do so through FireFox’s cookie manager (accessible through Preferences, Privacy, “Show Cookies”), it is much easier and quicker to use the aptly named [Remove Cookies for Site][] addon. Simply put, it adds a context menu option and optionally a toolbar button to clean off all of the cookies for the site currently being viewed.